Add a Fuelup doesn't switch between English/Metric units

[dtjohnso]

Hi, I have two vehicles. One uses kms and the other uses miles, so I need to be able to enter miles since last fuelup or kms since last fuelup depending on which vehicle I need to add a fuelup too.

With the old site, the add a fuelup page would automatically switch when I switched vehicles. Now it doesn't.